Consider using strawberry instead of graphene

[jtratner]

Strawberry looks pretty nice - https://strawberry.rocks/ - seems a little less verbose and more async-friendly than graphene (and possibly has a little bit more development velocity).

There's a direct pydantic adapter (which is nice!) and it's possible it would be easier to manage composition that way, etc.

Unclear about future of graphene-django / graphene / etc so want to leave pointer to strawberry (even though graphene has been super productive!)